body {
	font-family: "微软雅黑";
}

.brand {
	padding: 70px;
}

.brand h2 {
	text-align: center;
	margin-top: 0;
}

.come_brand {
	margin-bottom: 5%;
}

.come_brand_dec {
	text-align: center;
	margin-top: 5%;
}

.come_brand_dec p {
	font-size: 12px;
	color: #969696;
	margin-bottom: 20px;
}

.purpose_brand {
	margin-bottom: 5%;
}

.purpose {
	border: 1px solid #cbcbcb;
	text-align: center;
	padding: 2.7% 4.5%;
	margin: 0 12%;
}

.purpose h3 {
	font-size: 18px;
	color: #646464;
}

.purpose span {
	font-size: 24px;
	color: #646464;
}

.purpose hr {
	width: 100%;
	border-top: 3px solid #a6acb1;
}

.purpose_dec {
	text-indent: 2em;
	padding: 0 26%;
	margin: 0 -2%;
	padding-top: 5%;
	line-height: 30px;
	font-size: 12px;
	color: #969696;
}

.video_brand {
	border: 1px solid #969696;
	text-align: center;
	padding: 1% 2%;
	margin-bottom: 5%;
}

.worth {
	margin-bottom: 5%;
}

.worth_left .worth_left_dec {
	padding: 0 11%;
	text-indent: 2em;
	font-size: 12px;
	color: #969696;
	line-height: 40px;
}

.brand_nav {
	border: 1px solid #969696;
	width: 34%;
	text-align: center;
	padding: 8% 0;
	margin-top: 25%;
}

@media screen and (max-width: 768px) {

	/*如果文档宽度小于768px 像素则修改 */
	.brand_nav {
		margin-top: 5%;
	}
}

@media screen and (max-width: 500px) {

	/*如果文档宽度小于768px 像素则修改 */
	.brand_nav {
		margin-top: 5%;
		width: 70%;
	}
}

.brand_nav p {
	font-size: 18px;
	color: #646464;
}

.brand_nav span {
	font-size: 24px;
	color: #646464;
}

.brand_nav hr {
	border-top: 3px solid #969696;
}

.history_brand_nav {
	width: 33%;
	text-align: center;
	margin: 0 auto;
	padding: 24px 0;
	border: 1px solid #969696;
	margin-top: 20%;
	margin-bottom: 5%;
	padding: 20px 0;
}

@media screen and (max-width: 768px) {

	/*如果文档宽度小于768px 像素则修改 */
	.history_brand_nav {
		margin-top: 5%;
		padding: 10% 0;
	}
}

@media screen and (max-width: 500px) {

	/*如果文档宽度小于768px 像素则修改 */
	.history_brand_nav {
		margin-top: 5%;
		width: 70%;
	}
}

.history_brand_nav hr {
	border-top: 3px solid #969696;
}

.history_brand_nav p {
	font-size: 18px;
	color: #646464;
}

.history_brand_nav span {
	font-size: 24px;
	color: #646464;
}

.history_date {
	margin-top: 5%;
}

.history_month {
	width: 60%;
	text-align: center;
	margin: 0 auto;
	padding-top: 25%;
	margin-bottom: 5%;
	line-height: 40px;
}

@media screen and (max-width: 768px) {

	/*如果文档宽度小于768px 像素则修改 */
	.history_month {
		padding-top: 5%;
		width: 90%;
		line-height: 20px;
	}
}

.history_month p {
	font-size: 18px;
	color: #646464;
}

.history_month span {
	font-size: 12px;
	color: #646464;
}